Behold! My new PC: Thoughts?

[OctavianAXFive]

Processor
i7-4770k @ stock for now

Motherboard
MSi Z87 GD-65 Gaming Series

RAM
Corsair Vengeance pro 2x8GB

SSD
Samsung 840 Pro 256gb

CPU cooling
Swiftech H220

Case
Fractal Design Arc Midi r2

PSU
Corsair RM series 750w

GPU
Radeon HD 5870

Audio
Soundblaster X-fi Titanium HD

ODD
LG Blu-Ray reader

Case airflow is negative pressure. Not worried about dust because this thing has tons of filters and I even fitted special PCI plates with dust filters to make sure things stay cool and dust free.

All of these parts are brand new expect for the 5870. It's quite sad because I'd upgraded to a GTX 670 a few months before my old PC was stolen. I still had the 5870 so I didn't get a new card just yet. Idle my PC is pretty quiet (I'd guesstimate it's around 15dB). But whenever any game launches the 5870 attempts to leave the atmosphere, taking the sound barrier with it. All that and it still could fry an egg.

Anyway I'm keeping a close eye on the GPU market. I thought I could live with the 5870 until the GTX 800 series comes out sometime next spring/summer. But it's just so deafening I'm not sure I can wait that long. That and Planetside 2 is hardcore GPU bottle necked now (I know right?!).

I lean away from AMD because their support for older games is suspect (I can barely get KotoR to run when I disable in game movies, which is not good enough because that's an annual ritual for me). What do you guys think, R9 290X, GTX 780/Ti or suck it up and wait for 800 series or R9 3series?